Bread-roll machine.



A. ADELT.

BREAD ROLL MACHINE. APPLIOATION FILED APR. 3, 1911.

1 015,985; Patented Jan. 30, 1912.

2 SHEETS-SHEET 1.

COLUMBIA PLANouR'APH 60-. WASHINGTON. D. c

A. ADELT.

BREAD ROLL MACHINE.

APPLICATION FILED APR. 3, 1911.

1,015,985. Patented Jan. 30, 1912.

2.SHEETS-SHEET 2.

Wdws'as. Ina/mim- Q Q Amwmm COLUMBIA PLANUGRAPH cm, WAS c.

UNITED STATES PATENT OFFICE;

ALFRED ADELT, F BRESLAU, GERMANY, ASSIGNOR OF ONE-FIFTH TO JOSEF BECKERAND TWO-FIFTI-IS T0 CURT BECKER, BOTH OE IBEESLAU, GERMANY.

BREAD-ROLL MACHINE.

Specification of Letters Patent.

Application filed April 3, 1911.

To all whom it may concern:

Be it known that I, ALFRED ADELT, a subject of the German Emperor,residing at Breslau, in Germany, have invented certain new and usefulImprovements in Bread- Roll Machines, of which the following is aspecification.

The object of this invention is to provide a machine for lmeading,rolling and shaping dough for the production of breadrolls, and theinvention consists in the construction and combination of a series ofdough-treating devices, all of which will be described with reference tothe accompanying drawing and specifically pointed out in the subjoinedclaims.

In the drawing :Figure 1 is a side-view of the machine partly brokenaway, and Fig. 2 a front-view thereof; Figs. 3 and 4 are respectively aside view and an end view of one of the shaping devices, and Fig. 5 is asection on the line AA of Fig. 1, partly broken away. Figs. 6 to 9 arediagrams illustrating successive stages in the formation of the roll,Fig. 6 being a plan view of the lump of dough after preliminarytreatment in the machine, Figs. 7 and 8 a plan and side view of theflattened lump with a transverse construction, and Fig. 9 a plan view ofthe finished roll; Fig. 10 shows part of the drum and a co-acting rollerused for producing rolls of the shape shown in Fig. 9.

In the drawing, 1 represents a drum, with a series of rollers 2 mountedadjacent thereto. Lumps of dough such as shown in Fig. 6 are fed to thisdrum through inclined channels 3, from a kneading and rolling device,which comprises an endless band or belt 1 working in the directionindicated in Fig. 1 by arrows under flat parallel bars 5 fixed above it,parallel with its upper course. A cover 6 is pivoted above said bars 5,leaving the rear portions of the bars uncovered, and behind said covertwo of the channels between the bars contain rollers 7 which are mountedupon a spindle 8; the spindle is carried by the upper arms of doublearmed levers 9, the lower ends of which are connected by a rod 10 to theupper arm 11 of a lever pivoted at 12 The lower arm 12 of this leverlies in the path of a boss 13 on a cam disk 13 fixed to a shaft 14, sothat at each revolution of the cam disk the lever 11, 12 is rocked androcks the lever 9, thereby lifting the rollers 7 out of the channels inwhich they work. When lumps of dough are placed in these channels behindthe rollers 7, while the latter are resting on the belt 1 and are beingrotated by said belt, the dough is moved against the rollers 7, whichrepel it, so that the dough is .subjected to an action similar to manualkneading, and is formed into rolls of approximately the shape shown inFig. 6. When the rollers 7 are raised as described, the cylindricallumps of dough are carried by the band 4 under the hinged cover 6, bywhich they are crushed against the band while being conveyed toward thechannels 3. The pressing of the dough against the moving band by thestationary cover produces a further eflicient kneading effect.

The kneaded lumps slide down the channels 3 on to the drum lzand passbetween the same and the rollers 2, by which-they are flattened beforethey pass under traveling belts 16. The latter are actuated by the shaft15, rotatingas indicated in Fig. 1 by an arrow, and can be swung outwardat their lower ends. After passing this belt the forward end of thedough reaches the part 17 of a belt 17 by which it is rolled or curledupward to the level of the horizontal part 17 of said belt, the upperpart of the dough being still between the drum and the part 16 of thebelt 16. At this stage the drum 1 isautomatically stopped,

and the belt 16 rolls or curls the upper part of the dough downward, thedisk of dough with its front and rear edges curled together, being thenengaged by the part 17 of the belt 17 and carried to the final shapingdevices 18. The latter are hinged at 18 and rest upon the belt 17; theirunder surfaces slope downward and outward from the median line, as shownin Fig. 4:, so that the rolls acquire a shape tapering toward both ends.The finished rolls are delivered to the receptacle 19.

For producing the particular shape of roll shown, with a centralconstriction, the drum 1 and the rollers 2 are coned, to form valleystherein, as shown in Fig. 10, and have ribs 1 and 2* respectivelylocated in the valleys. These ribs cut from opposite sides into thedough, making-a constriction which subsequently facilitates the breakingof the baked roll. I may, however, use smooth rollers, or rollers ofother pattern, instead of these coned and ribbed rollers. The rollers 2are actuated by a circular rack l on the drum, and the latter is fixedto a shaft 23 on which is rotatably mounted a crank disk 22 carrying apawl 22 engaged with a ratchet wheel 24: fixed to the drum. The crankdisk 22 is connected by a pitman 21 to a crank disk 20, which is fixedto the shaft 14 and is driven by toothed gear from shaft 25. The crankdisk 20 is smaller than the crank disk 22, so that the latter does notmake complete revolutions, but oscillates. During oscillation of thedisk 22 in one direction the pawl 22 rotates the drum; duringoscillation in the opposite direction there occurs the automaticstoppage of the drum, already referred to. The rollers 7 are lifted bythe cam 13, 18 when this stoppage occurs, so that fresh lumps of doughstart on the journey to the drum while those already kneaded are beingstripped off the drum and curled up as described. The shaft 15 actuatingthe belts 16 is continuously driven from the shaft 25 by a driving belt25.

lVhat I claim as my invention. and desire to secure by Letters Patent ofthe United States is 1. In a bread-roll machine the combination ofadrum, means for imparting intermittent rotation to said drum, kneadingrollers co-acting with said drum, means for feeding dough between saidkneading rollers and drum, a continuously kneading belt positioned sothat the dough kneaded by said kneading rollers passes between saidkneading belt and drum in contact with both, and a continuously drivenstripping belt, part of which leads away from the drum and another partof which is posi tioned adjacent to the drum near the delivery end ofthe said kneading belt and moves in the opposite direction to the drum,so that the leading and trailing ends of the dough are rolled togetherby said belts.

2. In a bread-roll machine the combination of a drum, means forimparting intermittent rotation to said drum, kneading rollers co-actingwith said drum, a dough conveying belt, a channel for delivering doughfrom said conveyer belt to said drum and kneading rollers, a coverhinged above said conveyer belt so that it bears upon dough traveling onsaid belt to said channel, a continuously kneading belt positioned sothat the dough kneaded by said kneading rollers passes between saidkneading belt and drum in contact with both, and a continuously drivenstripping belt, part of which leads away from the drum and another partof which is positioned adjacent to the drum near delivery end of thesaid kneading belt and moves in the opposite direction to the drum, sothat the leading and trailing'ends of the dough are rolled to gether bysaid belts.

3. In a bread-roll machine the combination of a drum, means forimparting intermittent rotation to said drum, kneading rollers co-actingwith said drum, a dough conveying belt, a channel for delivering doughfrom said conveyer belt to said drum and kneading rollers, a coverhinged above said conveyer belt, so that it bears upon dough travelingon said belt to said chan nel, rollers placed in the path of the doughtraveling on said conveyer belt toward said cover, said rollers beingrotated by the belt in the opposite direction to the latter, means fortemporarily removing the last-mentioned rollers from the dough path atintervals, a continuously kneading belt positioned so that the doughkneaded by said kneading rollers passes between said kneading belt anddrum in contact with both, and a continuously driven stripping belt,part of which leads away from the drum and an other part of which ispositioned adjacent to the drum near the delivery end of the saidkneading belt and moves in the opposite direction to the drum, so thatthe leading and trailing ends of the dough are rolled together by saidbelts.

4. In a bread-roll machine the combination of a drum, means forimparting intermittent rotation to said drum, kneading rollers co-actingwith said drum, means for feeding dough between said kneading rollersand drum, a continuously kneading belt positioned so that the doughkneaded by said kneading rollers passes between said kneading belt anddrum in contact with both, a continuously driven stripping belt, part ofwhich leads away from the drum and another part of which is positionedadjacent to the drum near the delivery end of the said kneading belt andmoves in the opposite direction to the drum, so that the leading andtrailing ends of the dough are rolled togetlier by said belts, and ashaping member hinged above said stripping belt where the latter leadsaway from the drum, so that said member bears by gravity on the rolleddough traveling 011 said stripping belt.

5. In a bread-roll machine the combination of a drum, means forimparting intermittent rotation to said drum, kneading rollers co-actingwith said drum, said drum and kneading rollers being coned to formvalleys therein and having circular ribs at the centers of said valleys,means for feeding dough between said kneading rollers and drum, acontinuously kneading belt positioned so that the dough kneaded by saidkneading rollers passes between said kneading belt and drum in contactwith both, and a continuously driven stripping belt, part of which leadsaway from the drum and an- In Witness whereof I have signed this otherpart of which is positioned adjacent specification in the presence oftwo witnesses. to the drum near the delivery end of the said kneadingbelt and moves in the opposite ALFRED ADELT direction to the drum, sothat the leading Witnesses:

and trailing ends of the dough are rolled to- ERNST KATz,

gether by said belts. FRIEDVIG THURSCH.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents Washington, I). G.

